Sheetmetal transfer air ducts are constructed per SMACNA standards with no turning vanes in the elbows. The interior features a two-inch, one-pound density fiberglass duct liner with a neoprene coated surface. Opening sizes and exact orientation are coordinated per the architectural plans, maintaining minimum dimensions of thirty-six inches and eighteen inches typically.
SHEETMETAL DUCT CONSTRUCTED PER SMACNA STD'S. NO TURNING COATED SURFACE DUCT LINER W/ NEOPRENE VANES IN ELBOWS 2", 1\# DENSITY FIBERGLASS OPENING SIZES PER PLAN 36" MIN. (TYP.) 18" MIN. NOTICE: 1. SEE PLANS FOR EXACT ORIENTATION OF OPENINGS.
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